Lasting machine



Dec. 6, 19 49 N. A. MONFILS ET AL 9 LASTING MACHINE 2 Sheets-Sheet 1Filed Oct. 17, 1946 [12129121013 Napoleon A. Monfz'ls Edward Quinn Dec.6, 1949 N. A. MONFILS ET AL 2,490,226

LASTING MACHINE Filed 00x. 17, 1946 2 Shets-Sheet 2 fm/emors Napoleon AMonfz'ls Edward Quinn I zez'r Attorney Patented Dec. 6, 1949 LASTINGMACHINE Napoleon A. Monfils, Haverhill, and Edward Quinn, Saugus, Mass.,assignors to United Shoe Machinery Corporation, Flemington, N. J., acorporation of New Jersey Application October 17, 1946, Serial No.703,774

12 Claims. (01. 12-1) This invention relates to lasting machines, andmore particularly to a machine for lasting with an adhesive. It will beunderstood, however, that certain features of the invention are notlimited to use in a machine for lasting with adhesive or in a machine ofthe exact construction herein illustrated.

An object of the invention is to provide a novel and improved machinefor lasting with adhesive which is of relatively simple and inexpensiveconstruction yet effective and dependable in operation. With this end inview, the herein illustrated machine is provided with novel frictionallyacting means for continuously and progressively tensioning successiveportions of the stock to be lasted, in a direction heightwise of a shoe,for drawing the lasting margin thereof inwardly from the edge of, andover, the bottom of the shoe and for exerting a stress thereon tendingto feed the shoe; together with means for pressing the lasting margin ofthe tensioned' stock against the bottom of the shoe. More particularly,and in accordance with a feature of this invention, novel tensioning andoverdrawing means comprise a driven roll mounted for rotation about anaxis substantially perpendicular to the portion of the bottom of theshoe being operated upon and provided with a smooth-surfaced helical riband a sleeve having an arcuate Operating surface for yieldingly holdingthe lasting margin of the stock wrapped around the rib on the roll. Thearrangement is such that, as the roll rotates with the lasting margin ofthe stock yieldingly held against the rib thereon, the stock will bedrawn upwardly, in a direction heightwise of the shoe, by thefrictionally acting smooth-surfaced helical rib, which also exerts astress on the stock tending to feed the shoe. The shoe is held in thehands of an operator, who, by permitting it to feed along at differentspeeds, relatively slower than the peripheral speed of the rib on theroll, may readily vary the tensioning effect to accommodate differentoperating conditions. Also, because of the manner in which the stock iswrapped around the rib by the arcuate operating surface of the sleeve,the lasting margin of the stock is drawn inwardly from the edge of, andover, the bottom of the shoe.

For pressing the lasting margin of the stock against the bottom of theshoe, the herein illustrated machine is, in accordance with a furtherfeature of the invention, provided with means for imparting a rapidseries of hammer blows to the lasting margin for securing it adhesivelyto the bottom of the shoe. gPreferably, and as herein illustrated, thismeans comprises a hammer which is rapidly reciprocated, during theoperation of the machine, and arranged to engage the lasting margin ofthe stock just as it emerges from between the roll and the sleeve.

The above and other objects and features of the invention will beapparent from the following detailed description of a preferredembodiment thereof, illustrated in the accompanying drawings, and willbe pointed out in the claims.

In the drawings,

Fig. 1 is a view, in side elevation, of a machine embodying the featuresof this invention;

Fig. 2 is a view, in section on lines II-II of Fig. 3, of a portion ofthe machine shown in Fig. 1 and illustrating the operating elementsthereof at an enlarged scale;

Fig. 3 is a view, in side elevation and at an enlarged scale, of thefront end of the machine as seen from the side opposite to that shown inFig. 1; and

Fig. 4 is a view, in side elevation and at an enlarged scale, of thefront end of the machine as viewed in Fig. 1 and showing the operatingelements in position to receive the work.

Referring now to these drawings, the operating elements of the machinetherein illustrated comprise a tensioning and feeding roll Ill, providedwith a smooth-surfaced helical rib l2, a sleeve I4, having an arcuateoperating surface it, for holding the lasting margin of stock to belasted yieldingly against the helical rib of the aforementioned roll,and a vertically reciprocating hammer l8 for pressing the lasting marginof the tensioned stock against the bottom of a shoe. During theoperation of the machine, the shoe is positioned in a widthvvisedirection relative to the roll ill, by means of an edge gage roll 20,and is held against movement vertically, in response to the tensionapplied to the stock, by means of shoebottom rests 22 and 24 and also bythe engagement of the lower end of the roll ID with the bottom of theshoe.

The roll i0 is secured to the lower end of ,a shaft 30 which isjournaled in a block 32. This block is carried by a depending portion 34of an overhanging arm 35, mounted on the top of a cast head 38, seeFigs. 1, 3 and 4. The cast head comprises a lower base portion All,adapted to rest on a bench or other suitable support, not shown, and ishollow to receive a motor 42. The shaft of this motor is provided with apulley 44 which drives a double-faced pulley 46 by means of a belt 48.The shaft 30, and the roll I!) carried thereby, are driven from thepulley 46 by means of a belt 5Q and a pulley secured to the upper end ofthe shaft 30. The belt 50 is trained over a pair of idler pulleys, oneof which is indicated by the reference character 52 in Fig. 1 of thedrawings. These idler pulleys are each rotatably mounted on acountershaft 54 which is supported by a bracket 56 secured to the top ofthe head 38 by screws 58.

The sleeve I4 is formed as a downwardly extending portion of a bar 60which is slidably mounted in a guideway 62, cut in the block 32, and isheld in place by means of a coverplate 64, secured to the block 32 bymeans of screws 66. The bar 66 carries a pin 68 which projects through aslot I6, formed in the cover plate 64, and enters a slot I2, formed inthe lower-end of a lever I4. This lever is pivoted on a stud 16, seeFigs. 1 and 4, and connected to its upper end is a link .18. This linkis provided with a cylindrical end portion I9 which passes through athimble 8B, pivotally mounted on the upper end of a second lever 82. Acollar 84 is secured to the end portion I9 of the link 78, on one sideof the thimble 86, and on the opposite side of this thimble acompression spring 86 is interposed between the thimble and adjustingnuts 88, threaded on the end portion I9. The lever 82 is pivotallymounted on a stud 90, carried by the overhanging arm 36, and a coilspring 92 is stretched between the lower end of this lever and a pin 64mounted in the upper end of the head 33. Also connected to the lower endof this lever 82 is a cable 96 which passes over a sheave 98, rotatablymounted on a shaft I26 in a bracket I92, carried by the head 38, anddown through a hole I04 in the base portion 40 where it is secured toatreadle I06, see Fig. 1.

With the arrangement just described, when the treadle IDS is released,spring 92 will swing the lever 82, in a counterclockwise direction, and,through the action of link 78, the thimble 86 now bearing against thecollar 84, will cause lever I4 to swing in the same direction thus tomove the bar 60, together with the sleeve 14, to the right and to theopen position shown in Fig. 4. These movements of the aforementionedparts are limited by the engagement of the lower end of the lever I4with a second cover plate IIB which is secured to the first-mentionedcover plate 64 by means of screws II2. Depression of the treadle willmove these parts reversely and to the closed position shown in Figs. 1and 3, a stop II4, adjustably secured to the overhanging arm 36 by meansof screws H6, being provided to prevent actual contact of the surfaceI6, of the sleeve I4, with the helical rib I2 on the roll When stock,such, for example, as the lasting margin of the cover C of a platformshoe comprising an upper U and platform P, assembled on a last L, isinserted between the roll I and the sleeve I4, with these parts in theopen position shown in Fig. 4, and the treadle I66 depressed, thelasting margin of the stock will be pressed, yieldingly, against thehelical rib I2, on the roll I6, by the arcuate surface I6, by reason ofthe action of the spring 86. The thimble 60 will now move to the rightand away from the collar I9, see Fig. 1, thus compressing the. spring86, and the lever I4 will be held away from the stop II4. As will beapparent, further depression of the treadle will merely cause the spring86 to yield without materially changing the pressure applied to thestock or causing it to increase to a point where damage to the stockmight result. Instead, because of the action of the sprin 86, asubstantially uniform yielding pressure of the stock against the roll isobtained. However, the intensity of this pressure may be varied simplyby means of the adjusting nuts 88, or substituting a stronger, or aweaker, spring for the spring 86. If desired, a stop for the treadle maybe provided, as shown at IIS, II 9, in Fig. 1, to limit its downwardmovement and thus ease the strain on the operator.

The hammer I8 is formed on the end of a bar I25] and is shaped as shownin Fig. 2 to engage the lasting margin of the stock beyond the sleeve I4in the direction of feed. The bar I26 is slidably mounted in a grooveI22 formed in the block 32, and is held in place, by the cover plate H6,see Fig. 4. For reciprocating the bar vertically, it is connected to theend of a lever I24 by means of a pin I26 which passes through a slot!28, in the cover plate III), and enters a slot I66 in the lever. Thelever I24 is pivotally mounted on the stud 9!), inside of the lever 82,and to its other end an L-shaped arm I32 is adjustably secured by meansof screws I34. The arm I32 carries a cam roll I36 which engages a starcam I38 that is drivingly connected to one of the pulleys 52. A coilspring I49, connected to the lever I24 and also to the overhanging arm36, holds the cam roll aga nst this cam with the hammer I8 elevated,when the cam is in the position shown in Fig. 1. As the cam rotates, thelever I24 is oscillated at a high speed and thus causes the hammer I8 toimpart a rapid series of hammer blows to the lasting margin of thestock.

The edge gage roll 20 is mounted on a bracket I4I which is adjustablysecured, by means of screws I42, to a rearwardly projecting ear I44formed on the s eeve I4, Figs. 2, 3 and 4. The shoe-bottom rest 22comprises a ball that is rotatably mounted in a socket I46 provided onthe lower end of a rod I48. This rod is received in a bore I50, in theblock 32, and a setscrew I52 is provided for holding the rod I48, andthe shoebottom rest 22, in any desired position of vertical adjustment,see Fig. 3. The bottom rest 24 comprises an angle member I55 which issecured to the bottom face of the block 32 by means of screws I56.

The operation of the machine will now be described. The shoe ispresented to the machine, bottom side up, by the operator, who insertsthe lasting margin of the stock, e. g., the cover C. between the rollIll and the acurate surface I6 on the sleeve I4, with the treadle I06elevated and the aforementioned parts in the open position shown in Fig.4. The shoe is held upwardly with its bottom, e. g., the bottom surfaceof the platform P, bearing against the shoe bottom rests 22 and 24 andalso aga nst the lower end of the roll III which is preferably rounded,as shown in Fig. 4. The treadle is now depressed so that the lastingmargin of the cover is pressed yie dingly against the helical rib I2 onthe roll I 0, by the arcuate surface I6 of the sleeve I4, in the mannerexplained above.

Now, as the roll is rotated, at a relatively high speed by the motor 42,it exerts a frictional drag on the stock tending to feed the shoe alongat a rapid rate. By resisting this tendency. wh ch is made possible bythe smooth character of the surface of the rib I2, the operator is ableto cause the shoe to move along at a slower, yet moderate, rate, so thatthe peripheral speed of the rib will be considerably greater than thelinear speed of the stock, which, as explained above, is held againstthe rib. Accordingly, while the shoe is fed along, the helical rib I2also acts as a screw tending to move the stock axially of the roll Ill.

The lead of this rib is such that each successive portion of the stock,as it passes between the roll Ill and the arcuate surface It on thesleeve 14, is drawn upwardly by the rib I2 and the stock is thus,continuously and progressively, tensioned in a direction heightwise ofthe shoe. By permitting the roll to feed the shoe at a faster rate, orby holding the shoe back and further retarding its rate of feed, theaction of the helical rib to draw the stock upwardly may becorrespondingly modified and the resulting heightwise tension varied tosuit different materials or operating conditions, within limitsdetermined by the setting of the spring 86 and the nature of thematerial.

Referring to Fig. 2, it will be apparent that the lasting margin of thestock is wrapped around the roll, for a considerable extent of itsperiphery, in a direction extending inwardly from the edge of the bottomof the shoe by the arcuate surface 16 on the sleeve it. Thus, inaddition to its feeding and heightwise tensioning actions, the roll alsoexerts a stress on the stock tending to draw its lasting margin inwardlyfrom the edge of, and over, the bottom of the shoe.

As the stock, after being tensioned and overdrawn, as above explained,leaves the roll and sleeve, its lasting margin is immediately pressedagainst the bottom of the shoe, e. g., the bottom face of the platformP, by a rapid series of hammer blows imparted thereto by the verticallyreciprocating hammer l8. It will be understood that the inside surfaceof the lasting margin of the cover C and/or the marginal portion of thebottom face of the platform P, will have previously been coated with asuitable adhesive so that, by the a plication of pressure thereto by thehammer, the lasting margin will be securely bonded to the platform.Because of the rapidity with which the hammer 18 operates, substantiallyevery portion of the stock will be subjected to its action with theresult that the lasting margin is laid very smoothly against the bottomof the shoe.

As the lasting operation is continued, the shoe is positioned, in awidthwise direction, by the edge gage roll 20, which bears against theedge of the platform P, see Figs. 1 and 3. When the lasting operation,which may proceed around the entire periphery of the bottom of the shoe,or along only a portion thereof, as desired, nears completion, a portionof the lasting margin previously secured to the bottom of the platformis reached, the operator depresses the treadle Hi5 thus free ng thelasting margin which is then laid down on the platform as the shoe ismanually moved past the reciprocating hammer [8.

While the herein illustrated machine has been shown, and its operationdescribed, as performing the so-called cover-lasting operation, it is tobe understood that the machine is designed for, and capable of, lastingthe upper of a conventional shoe with like satisfactory results.Accordingly, in this specification, as well as in the appended claims,the term lasting is used in a broadened sense, and as now understood inthe trade, so as to include not only the conventional lasting operationbut also the analogous coverlasting operation, while the term lastingmargin is intended to include that portion of the cover of a platformshoe which corresponds to the like portion of the upper stock of aconventional shoe.

Having described our invention, what we claim as new and desire tosecure by Letters Patent of the United States is:

1. In a lasting machine, frictionally acting means for continuously andprogressively tensioning successive portions of the stock to be lasted,in a direction heightwise of a shoe, and for exerting a stress thereontending to feed the shoe, said means comprising a driven roll mountedfor rotation about axis substantially perpendicular to the portion ofthe bottom of the shoe being operated upon and provided with asmoothsurfaced helical rib and means having a relatively fixed operatingsurface for holding the lasting margin of the stock against said rib,and means for pressing the lasting margin of the tensioned stock againstthe bottom of the shoe.

2. In a lasting machine, frictionally acting means for continuously andprogressivel tensioning successive portions of the stock to be lasted,in a direction heightwise of a shoe, and for exerting a stress thereontending to feed the shoe, said means comprising a driven roll mountedfor rotation about an axis substantially perpendicular to the portion ofthe bottom of the shoe being operated upon and provided with asmoothsurfaced helical rib and means having a relatively fixed operatingsurface for holding the lasting margin of the stock yieldingly againstsaid rib, and means for pressing the lasting margin of the tensionedstock against the bottom of the shoe.

3. In a lasting machine, frictionally acting means for continuously andprogressively tensioning successive portions of the stock to be lasted,in a direction heightwise of a shoe, for drawing the lasting marginthereof inwardly from the edge of, and over, the bottom of the shoe, andfor exerting a stress thereon tending to feed the shoe, said meanscomprising a driven roll mounted for rotation about an axissubstantially perpendicular to the portion of the bottom of the shoebeing operated upon and provided with a smooth-surfaced helical rib and.means having a relatively fixed operating surface for holding thelasting margin of the stock wrapped around the rib, and means forpressing the lasting margin of the tensioned stock against the bottom ofthe shoe.

4. In a lasting machine, frictionally acting means for continuously andprogressively tensioning successive portions of the stock to be lasted,in a direction heightwise of a shoe, for drawing the lasting marginthereof inwardly from the edge of, and over, the bottom of the shoe, andfor exerting a stress thereon tending to feed the shoe, said. meanscomprising a driven roll mounted for rotation about an axissubstantially perpendicular to the portion of the bottom of the shoebeing operated upon and provided with a smoothsurfaced helical rib andmeans having a relatively fixed operating surface for holding thelasting margin of the stock yieldingly wrapped around the rib, and meansfor pressing the lasting margin of the tensioned stock against thebottom of the shoe.

5. In a lasting machine, frictionally acting means for continuously andprogressively tensioning successive portions of the stock to be lasted,in a direction heightwise of a shoe, for drawing the lasting marginthereof inwardly from the edge of, and over, the bottom of the shoe, andfor exerting a stress thereon tending to feed the shoe, said meanscomprising a driven roll mounted for rotation about an axissubstantially perpendicular to the portion of the bottom of the shoebeing operated upon and having a smooth-surfaced helical rib and amember having an arcuate operating surface for holding the lastingmargin wrapped around the rib, and means for pressing the lasting marginof the tensioned stock against the bottom of the shoe.

6. In a lasting machine, frictionally acting means for continuously andprogressively tensioning successive portions of the stock to be lasted,in a direction heightwise of a shoe, for drawing the lasting maraginthereof inwardly from the edge of, and over, the bottom of the shoe, andfor exerting a stress thereon tending to feed the shoe, said meanscomprising a driven roll mounted for rotation about an axissubstantially perpendicular to the portion of the bottom of the shoebeing operated upon and having a smooth-surfaced helical rib and amember having an arcuate operating surface for yieldingly holding thelasting margin wrapped around the rib, and means for pressing thelasting margin 01 the tensioned stock against the bottom of the shoe.

7. In a lasting machine, frictionally acting means for continuously andprogressively tensioning successive portions of the stock to be lasted,in a direction heightwise of a shoe, and for exerting a stress thereontending to feed the shoe, and a vertically reciprocating hammer forimparting a rapid series of hammer blows to a substantial area of thelasting margin of the tensioned stock for pressing it against the bottomof the shoe.

8. In a lasting machine, frictionally acting means for continuously andprogressively tensioning successive portions of the stock to be lasted,in a direction heightwise of a shoe, and for exerting a stress thereontending to feed the shoe, said means comprising a driven roll providedwith a helical rib and means having a relatively fixed operating surfacefor holding the lasting margin of the stock against said rib, and meansfor imparting a rapid series of hammer blows to the lasting margin ofthe tensioned stock for pressing it against the bottom of the shoe.

9. In a lasting machine, frictionally acting means for continuously andprogressively tensioning successive portions of the stock to be lasted,in a direction heightwise of a shoe, and for exerting a stress thereontending to feed the shoe, said means comprising a driven roll providedwith a helical rib and means having a relatively fixed operating surfacefor holding the lasting margin of the stock against said rib, and avertically reciprocating hammer for imparting a rapid series of blows tothe lasting margin of the tensioned stock for pressing it against thebottom of the shoe.

10. In a lasting machine, frictionally acting means for continuously andprogressively tensioning successive portions of the stock to be lasted,in a direction heightwise of a shoe, for drawing the lasting marginthereof inwardly from the edge of, and over, the bottom of the shoe, andfor exerting a stress thereon tending to feed the shoe, and a verticallyreciprocating hammer for imparting a rapid series of blows to asubstantial area of the lasting margin of the tensioned stock forpressing it against the bottom of the shoe.

11. In a lasting machine, frictionally acting means for continuously andprogressively tensioning successive portions of the stock to be lasted,in a direction heightwise of a shoe, for drawing the lasting marginthereof inwardly from the edge of, and over, the bottom of the shoe, andfor exerting a stress thereon tending to feed the shoe, said meanscomprising a driven roll provided with a helical rib and means having arelatively fixed operating surface for holding the lasting margin of thestock against said rib, and means for imparting a rapid series of hammerblows to the lasting margin of the tensioned stock for pressing itagainst the bottom of the shoe.

12. In a lasting machine, frictionally acting means for continuously andprogressively tensioning successive portions of the stock to be lasted,in a direction heightwise of a shoe, for drawing the lasting marginthereof inwardly from the edge of, and over, the bottom of the shoe, andfor exerting a stress thereon tending to feed the shoe, said meanscomprising a driven roll provided with a helical rib and means having arelatively fixed operating surface for holding the lasting margin of thestock against said rib, and a vertically reciprocating hammer forimparting a rapid series of blows to the lasting margin of the tensionedstock for pressing it against the bottom of the shoe.

NAPOLEON A. MONFILS.

EDWARD QUINN.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 2,251,284 Kamborian Aug. 5, 19412,286,362 I-Iammann June 16, 1942 2,314,047 Kamborian Mar. 16, 19432,326,193 Baker Aug. 10, 1943 2,397,369 Quinn et al Mar. 26, 1946

